Hello,
i have the following problem:
I can not kill an ejb timer after the call unregisterTimer method, and the
timer is still active even after the ejb is undeployed.
the source code of my bean is here under :
Code:
package com.test.timer;
import javax.annotation.PreDestroy;
import javax.annotation.Resource;
import javax.ejb.EJBException;
import javax.ejb.Local;
import javax.ejb.NoSuchObjectLocalException;
import javax.ejb.Remote;
import javax.ejb.SessionContext;
import javax.ejb.Stateless;
import javax.ejb.Timeout;
import javax.ejb.Timer;
import javax.ejb.TimerHandle;
import javax.ejb.TimerService;
import javax.ejb.TransactionAttribute;
import javax.ejb.TransactionAttributeType;
import javax.ejb.TransactionManagement;
import javax.ejb.TransactionManagementType;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import org.apache.log4j.Logger;
@Local( ITimerManagerLocal.class)
@Remote(ITimerManagerRemote.class)
@TransactionManagement(TransactionManagementType.CONTAINER)
@TransactionAttribute(TransactionAttributeType.SUPPORTS)
@Stateless( name = "NotifyExpiration",
mappedName="NotifyExpirationRemote")
public class TimerManagerBean implements ITimerManagerLocal,
ITimerManagerRemote {
private static final Logger logger = Logger.getLogger (
"EXPIRATION_SERVICE");
@Resource
private SessionContext sessionContext;
@Resource
private TimerService timerService;
//--------------------------------------------------------------------------
// Methods
//--------------------------------------------------------------------------
@PreDestroy
public void unregisterTimer() throws NamingException {
logger.info( "NOTIFY TIMEOUT UNREGISTER");
Context ctx = new InitialContext();
try {
TimerHandle handle = (TimerHandle) ctx.lookup(
"TIMER_JNDI_NAME");
ctx.unbind("TIMER_JNDI_NAME");
if (handle != null){
try {
Timer expirationTimer =
handle.getTimer();
if (expirationTimer != null){
expirationTimer.cancel();
}
} catch (NoSuchObjectLocalException e) {
logger.warn( "UNABLE TO
UNREGISTER TIME OUT", e);
} catch (IllegalStateException e) {
logger.warn( "UNABLE TO
UNREGISTER TIME OUT", e);
} catch (EJBException e) {
logger.warn( "UNABLE TO
UNREGISTER TIME OUT" , e);
}
}
} catch (Throwable thre){
logger.warn( "UNABLE TO UNREGISTER TIME OUT",
thre);
return;
}
}
public void registerTimer() throws NamingException {
unregisterTimer();
int delai = 10 * 1000;
Timer expirationTimer = createTimer( delai);
Context ctx = new InitialContext();
ctx.bind("TIMER_JNDI_NAME",
expirationTimer.getHandle());
if (logger.isInfoEnabled()){
logger.info("TIMER REGISTERED " +
expirationTimer.getNextTimeout().getTime());
}
}
private Timer createTimer( int delai)
{
try {
return sessionContext.getTimerService().createTimer(delai,
delai, null);
} catch( Throwable thr) {
return timerService.createTimer (delai, delai, null);
}
}
@Timeout
//@TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
public void timedOut(Timer obj)
{
try {
if (logger.isDebugEnabled()){
logger.debug(
String.format("TIMER
WAKEUP at: " + System.currentTimeMillis()));
}
logger.debug("do something...");
}catch (RuntimeException e) {
logger.debug( "TIMER WAKEUP FAILS");
}
}
}
so first i register the timer by calling registerTimer() method, and i wont to
kill it by calling unregisterTimer() method. but this does not work, and the
timer remains active even after the bean is undeployed.
If somme one has an idea or workaround to solve this problem ?
Thank's a lot.
Regard's.
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